Sitemap editor: Remove sendFrequency parameter

[mherwege]

See openhab/openhab-core#4338 (comment)

[relativeci]

#2170 Bundle Size — 10.77MiB (~-0.01%).

2eff2d5(current) vs 19a1acf main#2169(baseline)

Warning

Bundle contains 2 duplicate packages – View duplicate packages

Bundle metrics   1 change

	Current #2170	Baseline #2169
Initial JS	1.88MiB	1.88MiB
Initial CSS	607.91KiB	607.91KiB
Cache Invalidation	17.58%	17.64%
Chunks	223	223
Assets	246	246
Modules	2889	2889
Duplicate Modules	150	150
Duplicate Code	1.85%	1.85%
Packages	97	97
Duplicate Packages	2	2

Bundle size by type   1 change 1 improvement

	Current #2170	Baseline #2169
JS	8.96MiB (~-0.01%)	8.96MiB
CSS	892.47KiB	892.47KiB
Fonts	526.1KiB	526.1KiB
Media	295.6KiB	295.6KiB
IMG	140.74KiB	140.74KiB
HTML	1.24KiB	1.24KiB
Other	871B	871B

Bundle analysis report Branch mherwege:frequency Project dashboard

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[florian-h05]

LGTM, thanks!